diff --git a/Source/Client/ReplayPacketRecorder.h b/Source/Client/ReplayPacketRecorder.h
index 1c6d9b2..6f0b8c2 100644
--- a/Source/Client/ReplayPacketRecorder.h
+++ b/Source/Client/ReplayPacketRecorder.h
@@ -5,7 +5,7 @@
 #include <cstdint>
 #include <cstdio>
 
-struct PacketLengths;
+class PacketLengths;
 
 struct ReplayPacketRecorder {
   const PacketLengths& lengths;
diff --git a/Source/Contents/Emblems/EmblemUpload.h b/Source/Contents/Emblems/EmblemUpload.h
index 8acd6f9..361440a 100644
--- a/Source/Contents/Emblems/EmblemUpload.h
+++ b/Source/Contents/Emblems/EmblemUpload.h
@@ -4,7 +4,7 @@
 #include <cstdint>
 
 class CConnection;
-struct PacketLengths;
+class PacketLengths;
 struct WindowDialogs;
 
 struct EmblemUploadContext {
diff --git a/Source/Contents/World/WorldProximity.h b/Source/Contents/World/WorldProximity.h
index 5f85263..3bbab78 100644
--- a/Source/Contents/World/WorldProximity.h
+++ b/Source/Contents/World/WorldProximity.h
@@ -5,7 +5,7 @@
 #include <functional>
 
 class CConnection;
-struct PacketLengths;
+class PacketLengths;
 
 void UpdateWorldProximityNotification(
   unsigned char& notified, std::function<bool()> nearby, CConnection& connection, const PacketLengths& lengths, const std::uint32_t& accountId
diff --git a/Source/Network/Connection/Connection.h b/Source/Network/Connection/Connection.h
index 33b0aef..0276682 100644
--- a/Source/Network/Connection/Connection.h
+++ b/Source/Network/Connection/Connection.h
@@ -7,7 +7,7 @@
 #include <winsock2.h>
 
 class CRenderSystemBase;
-struct PacketLengths;
+class PacketLengths;
 
 struct ConnectionEndpoint {
   const char* address;
diff --git a/Source/Network/Packets/PacketLengths.cpp b/Source/Network/Packets/PacketLengths.cpp
index 308efc6..a2aaa0c 100644
--- a/Source/Network/Packets/PacketLengths.cpp
+++ b/Source/Network/Packets/PacketLengths.cpp
@@ -2,11 +2,14 @@
 
 #include <algorithm>
 
+// GLOBAL: gl_24489
+PacketLengths g_packetLengths;
+
 // OFFSET: 0x00B09E50
 // FUNCTION: fn_18388
 PacketLengthResult PacketLengths::Lookup(int id) const {
-  const auto entry = this->values.find(id);
-  if (entry == this->values.end()) {
+  const auto entry = this->m_values.find(id);
+  if (entry == this->m_values.end()) {
     return {-1, 4};
   }
 
@@ -32,7 +35,7 @@ int PacketLengths::FixedLength(int id) const {
     return 4;
   }
 
-  return std::max(this->Lookup(id).length, 2);
+  return std::max(g_packetLengths.Lookup(id).length, 2);
 }
 
 namespace {
@@ -51,15 +54,21 @@ namespace {
 
 // OFFSET: 0x00B02260
 // FUNCTION: fn_18387
-void PacketLengths::Initialize(std::map<int, PacketLengthValue>& values) {
+void PacketLengths::Initialize() {
   for (const PacketRegistration& value : registrations) {
-    values.try_emplace(value.id, PacketLengthValue{value.length, value.variable, value.record});
+    this->m_values.try_emplace(value.id, PacketLengthValue{value.length, value.variable, value.record});
   }
 }
 
+// OFFSET: 0x00B01E70
+// FUNCTION: fn_18383
+PacketLengths::PacketLengths() {
+  this->Initialize();
+}
+
 // OFFSET: 0x00B02210
 // FUNCTION: fn_18386
 int PacketLengths::IsRecorded(int id) const {
-  const auto entry = this->values.find(id);
-  return entry == this->values.end() ? 0 : entry->second.record;
+  const auto entry = this->m_values.find(id);
+  return entry == this->m_values.end() ? 0 : entry->second.record;
 }
diff --git a/Source/Network/Packets/PacketLengths.h b/Source/Network/Packets/PacketLengths.h
index 6d132d4..80ff8a5 100644
--- a/Source/Network/Packets/PacketLengths.h
+++ b/Source/Network/Packets/PacketLengths.h
@@ -15,20 +15,27 @@ struct PacketLengthResult {
   /* 0004 */ int length;
 };
 
-struct PacketLengths {
-  const std::map<int, PacketLengthValue>& values;
+class PacketLengths {
+public:
+  PacketLengths();
   PacketLengthResult Lookup(int id) const;
   int FixedLength(int id) const;
   int IsRecorded(int id) const;
-  static void Initialize(std::map<int, PacketLengthValue>& values);
+
+private:
+  /* 0000 */ std::map<int, PacketLengthValue> m_values;
+  void Initialize();
 };
 
+extern PacketLengths g_packetLengths;
+
 #if defined(_WIN32) && !defined(_WIN64)
 static_assert(sizeof(PacketLengthValue) == 0x0C);
 static_assert(offsetof(PacketLengthValue, variable) == 0x04);
 static_assert(offsetof(PacketLengthValue, record) == 0x08);
 static_assert(sizeof(PacketLengthResult) == 0x08);
 static_assert(offsetof(PacketLengthResult, length) == 0x04);
+static_assert(sizeof(PacketLengths) == 0x08);
 #endif
 
 #endif
diff --git a/Source/Network/Packets/PartyJoinPacket.h b/Source/Network/Packets/PartyJoinPacket.h
index 6f14a3b..1bc1241 100644
--- a/Source/Network/Packets/PartyJoinPacket.h
+++ b/Source/Network/Packets/PartyJoinPacket.h
@@ -10,7 +10,7 @@
 #include <string>
 
 class CConnection;
-struct PacketLengths;
+class PacketLengths;
 class WindowManagerWindows;
 
 void SendPartyJoin(CConnection& connection, const PacketLengths& lengths, const std::uint32_t* accountId, const std::uint32_t* characterId);
diff --git a/Source/Network/Packets/ShortcutPacket.h b/Source/Network/Packets/ShortcutPacket.h
index f3e9f1e..09ea380 100644
--- a/Source/Network/Packets/ShortcutPacket.h
+++ b/Source/Network/Packets/ShortcutPacket.h
@@ -10,7 +10,7 @@
 
 struct NormalItemSlot;
 class CConnection;
-struct PacketLengths;
+class PacketLengths;
 
 void SendShortcutUpdate(
   CConnection& connection, const PacketLengths& lengths, int index, int bank, const NormalItemSlot* bank0, const NormalItemSlot* bank1,
diff --git a/Source/Resource/ResourceFailures.cpp b/Source/Resource/ResourceFailures.cpp
index ea9320a..95c6f5f 100644
--- a/Source/Resource/ResourceFailures.cpp
+++ b/Source/Resource/ResourceFailures.cpp
@@ -1,16 +1,16 @@
 #include "Resource/ResourceFailures.h"
+#include "UI/Window/UIWindowMgr.h"
 #include "Utility/Threading/NSyncObject.h"
 
+#include <cstdint>
 #include <cstring>
 
-// INLINED
-ResourceFailures::ResourceFailures(ResourceMessages& messages) : m_messages(&messages) {
-  InitializeCriticalSection(&this->m_lock);
-}
+// GLOBAL: gl_24582
+ResourceFailures g_resourceFailures;
 
 // INLINED
-ResourceFailures::~ResourceFailures() {
-  DeleteCriticalSection(&this->m_lock);
+ResourceFailures::ResourceFailures() {
+  InitializeCriticalSection(&this->m_lock);
 }
 
 // OFFSET: 0x00AEE310
@@ -27,8 +27,8 @@ void ResourceFailures::Report(std::string requested, std::string resolved) {
     report = this->m_reported.insert(resolved).second;
   }
   if (report) {
-    this->m_messages->Message("Resource File Loading fail", 255);
-    this->m_messages->Message(requested.c_str(), 255);
-    this->m_messages->Message(resolved.c_str(), 255);
+    g_windowMgr.SendMsg(1, reinterpret_cast<std::intptr_t>("Resource File Loading fail"), 255, 0, 0, 0);
+    g_windowMgr.SendMsg(1, reinterpret_cast<std::intptr_t>(requested.c_str()), 255, 0, 0, 0);
+    g_windowMgr.SendMsg(1, reinterpret_cast<std::intptr_t>(resolved.c_str()), 255, 0, 0, 0);
   }
 }
diff --git a/Source/Resource/ResourceFailures.h b/Source/Resource/ResourceFailures.h
index fc7978a..7bb6d15 100644
--- a/Source/Resource/ResourceFailures.h
+++ b/Source/Resource/ResourceFailures.h
@@ -1,6 +1,7 @@
 #ifndef RAGNAROK_SOURCE_RESOURCE_RESOURCEFAILURES_H
 #define RAGNAROK_SOURCE_RESOURCE_RESOURCEFAILURES_H
 
+#include <cstddef>
 #include <set>
 #include <string>
 #include <windows.h>
@@ -13,16 +14,27 @@ protected:
   ~ResourceMessages() = default;
 };
 
+// VTABLE: vt_01619
 class ResourceFailures {
 public:
-  explicit ResourceFailures(ResourceMessages& messages);
-  ~ResourceFailures();
+  ResourceFailures();
+  virtual ~ResourceFailures() = default;
   void Report(std::string requested, std::string resolved);
 
+  /* 0004 */ CRITICAL_SECTION m_lock;
+  /* 001C */ std::set<std::string> m_reported;
+
 private:
-  CRITICAL_SECTION m_lock;
-  std::set<std::string> m_reported;
-  ResourceMessages* m_messages;
+  ResourceFailures(const ResourceFailures&) = delete;
+  ResourceFailures& operator=(const ResourceFailures&) = delete;
 };
 
+extern ResourceFailures g_resourceFailures;
+
+#if defined(_WIN32) && !defined(_WIN64)
+static_assert(offsetof(ResourceFailures, m_lock) == 0x04);
+static_assert(offsetof(ResourceFailures, m_reported) == 0x1C);
+static_assert(sizeof(ResourceFailures) == 0x24);
+#endif
+
 #endif
diff --git a/Source/Resource/ResourceMgr.cpp b/Source/Resource/ResourceMgr.cpp
index 625a2bd..b85c372 100644
--- a/Source/Resource/ResourceMgr.cpp
+++ b/Source/Resource/ResourceMgr.cpp
@@ -153,7 +153,7 @@ __forceinline CRes* ResourceMgr::LoadNamed(const char* name) {
 
     lock.reset();
     if (resolved.find("\\map\\") == std::string::npos) {
-      this->m_failures->Report(name, resolved);
+      g_resourceFailures.Report(name, resolved);
     }
 
     return nullptr;
diff --git a/Source/Resource/ResourceMgr.h b/Source/Resource/ResourceMgr.h
index 79d95cc..452c99a 100644
--- a/Source/Resource/ResourceMgr.h
+++ b/Source/Resource/ResourceMgr.h
@@ -9,8 +9,6 @@
 #include <vector>
 #include <windows.h>
 
-class ResourceFailures;
-
 struct ResourceNameLess {
   bool operator()(const ResourceName* left, const ResourceName* right) const;
 };
@@ -41,7 +39,6 @@ private:
   std::vector<std::map<const ResourceName*, CRes*, ResourceNameLess>> m_resources;
   CRITICAL_SECTION m_lock;
   std::vector<CRes*> m_transient;
-  ResourceFailures* m_failures;
   std::uint32_t unknown_004C[17];
   void EraseTransient(CRes* resource);
   CRes* LoadNamed(const char* name);
diff --git a/Source/UI/Window/UIWindowMgr.h b/Source/UI/Window/UIWindowMgr.h
index 8e1fd2b..9fcc139 100644
--- a/Source/UI/Window/UIWindowMgr.h
+++ b/Source/UI/Window/UIWindowMgr.h
@@ -434,6 +434,7 @@ public:
   char UpdateSnapRectangles();
   bool ProcessDialogKey(int unused, int key);
   void NotifyMode();
+  int SendMsg(int message, std::intptr_t argument1, std::intptr_t argument2, std::intptr_t argument3, std::intptr_t argument4, std::intptr_t argument5);
 };
 
 extern UIWindowMgr g_windowMgr;